What is the raised part at the rear top of a car roof called?
1 Answers
The raised part at the rear top of a car roof is called a shark fin, which serves as the car's antenna. Additionally, the shark fin design inherently offers lower wind resistance compared to traditional antennas, and its casing can also function as a spoiler. Functions of the car shark fin: Signal reception—it receives radio signals, as well as GSM signals for communication and internet, GPS signals for positioning, and various multimedia services including navigation. Static electricity dissipation—it absorbs a significant amount of static electricity from the car's body and releases it through the shark fin, preventing interference with the car's internal circuits and reducing the likelihood of damage. Spoiler effect—from a physics perspective, a car encounters resistance while moving, which increases with speed. The shark fin splits the airflow, thereby reducing wind resistance, effectively lowering fuel consumption and noise. Installation method for the car shark fin: Remove the original car antenna; use the screws provided with the shark fin antenna to secure the antenna spring plate, ensuring it is tightly fastened, then simply cover the shark fin antenna over the original car antenna and mark the position with a pen once fixed; apply adhesive to the marked position on the roof, press the shark fin antenna firmly back and forth to ensure it is securely attached.